Global Patent Index - EP 0416753 B1

EP 0416753 B1 19940406 - Recuperation in master cylinder.

Title (en)

Recuperation in master cylinder.

Title (de)

Rekuperation bei Hauptzylindern.

Title (fr)

Récupération à maîtres cylindres.

Publication

EP 0416753 B1 19940406 (EN)

Application

EP 90308704 A 19900808

Priority

GB 8919364 A 19890825

Abstract (en)

[origin: EP0416753A1] A master cylinder, particularly of the type in which the piston (10) is withdrawn from the bore (14), at least to the extent of providing a recuperation flowpath past a sealing ring (16) on the piston. The sealing ring (16) is axially and also preferably radially, floating between a bearing ring (30) (for maintaining piston alignment) and a shoulder (22) on the piston, the sealing ring being biased to urge a back face (20) (with respect to the forward piston stroke) into contact with a sealing surface of the piston. In response to such bias and also preferably an initial surge of pressure communicated to the radial clearance between the sealing ring and the piston, as the piston enters the bore, the sealing ring may be radially expansible to assist initial interference of the sealing ring with the cylinder.

IPC 1-7

B60T 11/16

IPC 8 full level

B60T 11/16 (2006.01); B60T 11/232 (2006.01); B60T 11/236 (2006.01)

CPC (source: EP)

B60T 11/232 (2013.01); B60T 11/236 (2013.01)

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0416753 A1 19910313; EP 0416753 B1 19940406; DE 69007910 D1 19940511; DE 69007910 T2 19940825; GB 8919364 D0 19891011; JP 2895933 B2 19990531; JP H0392466 A 19910417

DOCDB simple family (application)

EP 90308704 A 19900808; DE 69007910 T 19900808; GB 8919364 A 19890825; JP 22417490 A 19900824